@cloudbet/market-helper/liability.js

SDK to generate localized sport market information

import { BigNumber } from 'bignumber.js';
export var getSingleStakeLimit = function (liability, price) {
    return new BigNumber(liability).dividedBy(new BigNumber(price).minus(1)).toNumber();
};
export var getNormalizedRelevances = function (probabilities) {
    var totalRelevance = new BigNumber(probabilities.length);
    for (var _i = 0, probabilities_1 = probabilities; _i < probabilities_1.length; _i++) {
        var prob = probabilities_1[_i];
        totalRelevance = totalRelevance.minus(prob);
    }
    return probabilities.map(function (p) {
        return new BigNumber(1).minus(p).dividedBy(totalRelevance).toNumber();
    });
};
export var getParlayStakeLimit = function (legs) {
    var minSingleStakeLimit = undefined;
    var singleStakeLimits = new Array(legs.length);
    for (var i = 0; i < legs.length; i++) {
        var _a = legs[i], liability = _a.liability, price = _a.price;
        var stakeLimit = getSingleStakeLimit(liability, price);
        singleStakeLimits[i] = stakeLimit;
        if (minSingleStakeLimit === undefined || stakeLimit < minSingleStakeLimit) {
            minSingleStakeLimit = stakeLimit;
        }
    }
    var parlayStakeLimit = 0;
    var normalizedRelevances = getNormalizedRelevances(legs.map(function (l) { return l.probability; }));
    for (var i = 0; i < legs.length; i++) {
        var relevance = normalizedRelevances[i];
        var singleLimit = singleStakeLimits[i];
        var legLimit = new BigNumber(singleLimit)
            .multipliedBy(relevance)
            .toNumber();
        // we know this wont be undefined at this point anymore
        // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
        parlayStakeLimit += Math.min(legLimit, minSingleStakeLimit);
    }
    return parlayStakeLimit;
};
//# sourceMappingURL=liability.js.map